Definition of the adjective alarmed

What does alarmed mean as an attribute of a noun?

adjective

experiencing a sudden sense of danger

examples: We were alarmed at her cry. | The city was alarmed by the earthquake. | I am alarmed by your irresponsible attitude. | He was alarmed by the explosion. | They were alarmed at the news. | Her ceaseless caterwauling alarmed every dog within a 500-foot radius. | Tom certainly didn't sound alarmed. | Don't be alarmed. | Tom looked alarmed. | Tom looks alarmed.

Thus, the ZAR alarmed the British by sponsoring the creation of the sister-
republics of Stellaland and Goshen, not because blacks lost land to them but
because they were obstacles to communication between the Cape and the
increasing ...